Door stop



FIG. 1 is a front perspective view of a door stop, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings depict the bounds of the claimed design, it being understood that the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a door stop, as shown and described. 